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4 years ago

What is the system of solution to y-x=-13 and -4x+3y=-51

1 answer:

8 0

Equation 1 ==> y - x = -13
Equation 2 ==> -4x + 3y = -51
3(y - x) = 3(-13)
Equation 3 ==> 3y - 3x = -39

Equation 2 - 3
= (3y - 3y) + ( -4x - (-3x) ) = -51 - (-39)
-x = -12
x = 12

Substitude x into equation 1
y - 12 = -13
y = -1

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$\large\boxed{r^2=(x+5)^2+(y-4)^2}$

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